Improved plough



THOMAS MARCH, OF DALLAS, MICHIGAN.V

Letters Patent No. 68,635, dated September 10, 1867. i

IMPROVED PLOUGH.

TO WI-IOM IT MAY CONCERN:

Be it known that I, THOMAS MARCH, of Dallas, in the county of Clinton,in the State of Michigan, have invented a new and useful improvement inthe Manufacture of Plougbs; and I do declare thatthe following isl an:tceurateldeseription thereof, reference being had to the accompanyingdrawings, a.

` nd to the letters of reference marked thereon, being a. part of thisspeci'eution.

Figure 1 is e perspective. view of my plough. Figure 2 is a. sectionalView of the mould-board, showing the cast iron and steel. Figure 3 is a,sectionail view of the land-side.

The plough is made of cest iron, with ribscast upon the outer side ofmould-,board A andilnd-side B.

These ribs are cast with sutleient height or thickness to be flush oreven with a piece of steel plate swagedinto proper shape to fit themould-board and lend-side,` to be placed between the ribs C C, &e., andsecuredtio the mould-board and land-side by proper bolts or rivets, orother suitable device. By this way of making Aafplowugh I get one thatworks with all the ea-se and cleanliness of an entire'steel plough, at afar less-expense. i

The same letters of reference refer to similar parts in each drawing. Dare the steelplates, swage'd into proper shape, as above described. WhatI claim es'my invention, and desire to secure by Letters Patent, is Themethod herein described of constructing the mould-board and laud-side ofa pl described. v

ough, substantially a-s Detroit, June 20, 1867. i

THOMAS MARCH.

Witnesses:

H. L. SPRAGUE, J. R. ARMSTRONG.

